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Finding the Fourth Proportional to 379,688.70, 569,533.05 and 246,719.10

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Solution

The fourth proportional to 379,688.70, 569,533.05 and 246,719.10 is: 370,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,688.70 : 569,533.05 = 246,719.10 : x
  2. Step 2: Convert to fraction form
    379,688.70/569,533.05 = 246,719.10/x
  3. Step 3: Cross multiply
    379,688.70x = 569,533.05 × 246,719.10
  4. Step 4: Simplify right side
    379,688.70x = 140,514,681,516.26
  5. Step 5: Solve for x
    x = 140,514,681,516.26/379,688.70
  6. Step 6: Final answer
    x = 370,078.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.